When will the IPO tap thaw? Soon, says Renaissance Capital Principal Kathleen Shelton Smith, but only after we're fully into the back-to-work fall season and company executives feel more confident about where they're headed in terms of taxes, regulation, and health care.

Since July 8, when Fortune Bank shelved its $360 million IPO, a total of 11 filings in the finance sector have not gone to market, according to data from Renaissance Capital. Those 11 filings are just a fraction of the total 168 IPOs that have stalled.

From an overall market perspective, LPL Investment Holding Inc.'s $600 million listing arrives during a period of volatility, with a boomlet of financial services IPOs in the first four months of 2010 followed by a steep fall-off in May.